AR013953A1 - Metodo para facilitar exploraciones de celda en un sistema de comunicaciones celulares. - Google Patents
Metodo para facilitar exploraciones de celda en un sistema de comunicaciones celulares.Info
- Publication number
- AR013953A1 AR013953A1 ARP980104275A ARP980104275A AR013953A1 AR 013953 A1 AR013953 A1 AR 013953A1 AR P980104275 A ARP980104275 A AR P980104275A AR P980104275 A ARP980104275 A AR P980104275A AR 013953 A1 AR013953 A1 AR 013953A1
- Authority
- AR
- Argentina
- Prior art keywords
- code
- word
- explorations
- valid
- communications system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7083—Cell search, e.g. using a three-step approach
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
- H04J13/102—Combining codes
- H04J13/107—Combining codes by concatenation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/043—Pseudo-noise [PN] codes variable during transmission
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5741297P | 1997-08-29 | 1997-08-29 | |
US09/129,151 US6185244B1 (en) | 1997-08-29 | 1998-08-05 | Cell searching in a CDMA communications system |
Publications (1)
Publication Number | Publication Date |
---|---|
AR013953A1 true AR013953A1 (es) | 2001-01-31 |
Family
ID=26736471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP980104275A AR013953A1 (es) | 1997-08-29 | 1998-08-27 | Metodo para facilitar exploraciones de celda en un sistema de comunicaciones celulares. |
Country Status (12)
Country | Link |
---|---|
US (2) | US6185244B1 (fr) |
EP (1) | EP1008245B1 (fr) |
JP (1) | JP3427056B2 (fr) |
KR (1) | KR100378478B1 (fr) |
CN (2) | CN1135765C (fr) |
AR (1) | AR013953A1 (fr) |
AU (1) | AU755349B2 (fr) |
BR (1) | BRPI9812029B1 (fr) |
CA (1) | CA2301749C (fr) |
DE (1) | DE69840981D1 (fr) |
MY (1) | MY121295A (fr) |
WO (1) | WO1999012295A1 (fr) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2301896T3 (es) * | 1997-07-17 | 2008-07-01 | Matsushita Electric Industrial Co., Ltd | Procedimiento de sincronizacion para un sistema cdma. |
US6185244B1 (en) | 1997-08-29 | 2001-02-06 | Telefonaktiebolaget Lm Ericsson | Cell searching in a CDMA communications system |
DE69832589T2 (de) | 1998-05-15 | 2006-08-10 | Sony Deutschland Gmbh | Sender und Übertragungsverfahren, die die Flexibilität der Zuordnung von Koden erhöhen |
JP3260716B2 (ja) * | 1998-06-05 | 2002-02-25 | 松下電器産業株式会社 | 送信装置及びそれを用いた基地局装置 |
US6526035B1 (en) * | 1998-06-09 | 2003-02-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for identifying the source of a digital signal |
US6665277B1 (en) * | 1998-10-16 | 2003-12-16 | Texas Instruments Incorporated | Comma free codes for fast cell search using tertiary synchronization channel |
KR100340932B1 (ko) * | 1998-10-26 | 2002-06-20 | 조정남 | 비동기식 광대역 부호 분할 다중 접속 시스템에서의 셀 탐색 방법 |
KR100287896B1 (ko) * | 1999-02-06 | 2001-04-16 | 서평원 | 이동 통신 시스템에서 셀 탐색 방법 |
DE19911480C2 (de) * | 1999-03-15 | 2003-06-18 | Siemens Ag | Verfahren zur Synchronisation von Basisstationen eines Funk-Kommunikationssystems |
US6831929B1 (en) * | 1999-03-22 | 2004-12-14 | Texas Instruments Incorporated | Multistage PN code aquisition circuit and method |
JP4955850B2 (ja) * | 1999-04-08 | 2012-06-20 | テキサス インスツルメンツ インコーポレイテッド | Wcdmaのためのダイバーシティ検出 |
KR100290678B1 (ko) * | 1999-04-24 | 2001-05-15 | 윤종용 | 씨디엠에이 이동통신시스템의 셀탐색 장치 및 방법 |
KR100421142B1 (ko) * | 1999-04-28 | 2004-03-04 | 삼성전자주식회사 | 이동통신시스템의 셀탐색 장치 및 방법 |
WO2000067399A1 (fr) * | 1999-04-29 | 2000-11-09 | Samsung Electronics Co., Ltd. | Appareil et procede de synchronisation de canaux dans un systeme de communications amcr large bande |
KR20000073917A (ko) * | 1999-05-15 | 2000-12-05 | 윤종용 | 비동기식 부호분할다중접속 통신시스템의 동기워드 생성 및 송수신장치 및 방법 |
EP1443684B1 (fr) * | 1999-05-28 | 2007-08-22 | Interdigital Technology Corporation | Procédure de recherche de cellule pour systèmes TDD/CDMA |
US6717930B1 (en) * | 2000-05-22 | 2004-04-06 | Interdigital Technology Corporation | Cell search procedure for time division duplex communication systems using code division multiple access |
CN1157858C (zh) * | 1999-05-29 | 2004-07-14 | 罗克马诺尔研究有限公司 | 涉及移动电信系统的或移动电信系统中的改进 |
US7103085B1 (en) * | 1999-06-18 | 2006-09-05 | Texas Instruments Incorporated | Wireless communications system with secondary synchronization code based on values in primary synchronization code |
US6363060B1 (en) * | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
KR100566249B1 (ko) * | 1999-07-02 | 2006-03-29 | 삼성전자주식회사 | 비동기 부호분할다중접속 통신시스템의 고속 셀 탐색 장치 및방법 |
EP1112632B1 (fr) * | 1999-07-07 | 2005-04-13 | Samsung Electronics Co., Ltd. | Appareil et procede de generation de codes de brouillage dans un systeme de communication mobile sutm |
JP2001086035A (ja) * | 1999-09-14 | 2001-03-30 | Nec Corp | Cdmaにおけるセルサーチ方法 |
EP1091507B1 (fr) * | 1999-10-05 | 2011-12-14 | Texas Instruments Incorporated | Système de communication sans fils ayant des composantes de canal de synchronisation espacées asymmétriquement |
DE10001854A1 (de) | 2000-01-18 | 2001-08-02 | Infineon Technologies Ag | Verfahren und Vorrichtung zur Ermittlung der Trägerfrequenz von Basisstationen im mobilen Empfänger eines mit W-CDMA arbeitenden zellularen Mobilfunksystems |
EP1133077A1 (fr) * | 2000-03-10 | 2001-09-12 | Mitsubishi Electric Information Technology Centre Europe B.V. | Méthodes de synchronisation entre des stations de base et un equipement mobile dans un système de communication cellulaire |
US6801567B1 (en) * | 2000-03-30 | 2004-10-05 | Texas Instruments Incorporated | Frequency bin method of initial carrier frequency acquisition |
ATE334561T1 (de) * | 2000-05-10 | 2006-08-15 | Mitsubishi Electric Inf Tech | Verfahren zur zuweisung von sekundärsynchronisationscodes an eine basisstation eines mobilkommunikationssystems |
EP1722586B1 (fr) * | 2000-05-10 | 2008-08-27 | Mitsubishi Electric Information Technology Centre Europe B.V. | Système de télécommunication mobile et station de base d'affectation de codes de synchronisation secondaires |
US8576754B2 (en) | 2000-05-22 | 2013-11-05 | Interdigital Technology Corporation | TDD base station for code group synchronization |
JP4255601B2 (ja) * | 2000-06-14 | 2009-04-15 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システムにおける移動局の同期確立方法 |
TW518839B (en) * | 2000-08-30 | 2003-01-21 | Ind Tech Res Inst | Method and device of code group identification and frame edge synchronization |
JP3741944B2 (ja) * | 2000-09-18 | 2006-02-01 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システムにおける移動局のセルサーチ方法 |
TW490981B (en) * | 2000-10-30 | 2002-06-11 | Ind Tech Res Inst | Method and device for code group identification and frame boundary synchronization |
WO2002043264A2 (fr) * | 2000-11-27 | 2002-05-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Dispositif de communication mobile |
US6628634B2 (en) * | 2000-12-11 | 2003-09-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Fast decoding of long codes |
US6894995B2 (en) * | 2001-06-22 | 2005-05-17 | Interdigital Technology Corporation | Apparatus and method for performing initial cell search in wireless communication systems |
ATE337666T1 (de) * | 2001-07-19 | 2006-09-15 | Transcore Link Logistics Corp | Phasennachlaufeinrichtung für linear modulierte signale |
US6768768B2 (en) * | 2001-09-19 | 2004-07-27 | Qualcomm Incorporated | Method and apparatus for step two W-CDMA searching |
US6701482B2 (en) * | 2001-09-20 | 2004-03-02 | Qualcomm Incorporated | Method and apparatus for coding bits of data in parallel |
JP3843040B2 (ja) * | 2001-09-26 | 2006-11-08 | 松下電器産業株式会社 | セルサーチ方法及び通信端末装置 |
KR100762602B1 (ko) * | 2001-10-08 | 2007-10-01 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템에서 기준 타이밍생성장치 및 방법 |
US7110782B2 (en) * | 2001-10-30 | 2006-09-19 | Texas Instruments Incorporated | Cell search synchronization |
WO2003047117A2 (fr) | 2001-11-29 | 2003-06-05 | Interdigital Technology Corporation | Systeme et procede faisant appel a des codes de synchronisation primaires et secondaires lors de la recherche de cellules |
US7065064B2 (en) * | 2001-12-20 | 2006-06-20 | Interdigital Technology Corporation | Cell search using peak quality factors |
CN100403669C (zh) * | 2002-01-23 | 2008-07-16 | 华为技术有限公司 | 一种在移动通信网络中提供实时广播业务的方法 |
US8761081B2 (en) * | 2002-03-19 | 2014-06-24 | Texas Instuments Incorporated | Method and apparatus for cell searching in asynchronous CDMA systems |
US7110438B2 (en) * | 2002-03-26 | 2006-09-19 | Accton Technology Corporation | Method and apparatus for cell search for W-CDMA with non-ideal sampling |
US7126981B2 (en) * | 2002-04-25 | 2006-10-24 | Accton Technology Corporation | Method and apparatus for cell search for W-CDMA with effect of clock offset |
US6816474B2 (en) | 2002-06-28 | 2004-11-09 | Qualcomm Incorporated | Method and system for efficiently acquiring CDMA based overhead channel data frames |
AU2003255965A1 (en) * | 2002-08-29 | 2004-03-19 | Koninklijke Philips Electronics N.V. | Transceiver apparatus for use in a multi-frequency communication system, base station of a multi-frequency communication system, method for use of the transceiver apparatus, method of transceiving a multi-frequency signal in a multi-frequency communication system |
CN1682458A (zh) * | 2002-09-12 | 2005-10-12 | 美商内数位科技公司 | 以无线传送及接收单元于信元搜寻中减缓干扰 |
US7633976B2 (en) * | 2002-09-19 | 2009-12-15 | Industrial Technology Research Institute | Method and apparatus for code group identification and frame synchronization by use of Reed-Solomon decoder and reliability measurement for UMTS W-CDMA |
KR100479864B1 (ko) * | 2002-11-26 | 2005-03-31 | 학교법인 중앙대학교 | 이동 통신 시스템에서의 하향링크 신호의 구성 방법과동기화 방법 및 그 장치 그리고 이를 이용한 셀 탐색 방법 |
CN1745527B (zh) * | 2003-02-05 | 2010-11-10 | 美商内数位科技公司 | 无线通信系统中初始小区搜索 |
JP4464707B2 (ja) * | 2004-02-24 | 2010-05-19 | パナソニック株式会社 | 通信装置 |
KR100622149B1 (ko) * | 2004-11-25 | 2006-09-19 | 주식회사 팬택 | 비동기 방식 광대역 부호분할다중접속 시스템에서의코드그룹 획득 장치 및 방법 |
KR100614745B1 (ko) * | 2004-12-29 | 2006-08-21 | 에스케이텔레콤 주식회사 | 수신 다이버시티를 이용한 비동기 방식 광역 부호분할다중접속 시스템에서의 코드 그룹 획득 방법 및 장치 |
US8134996B2 (en) * | 2005-07-21 | 2012-03-13 | Texas Instruments Incorporated | Downlink synchronization for a cellular OFDM communication system |
US8218517B2 (en) * | 2006-02-28 | 2012-07-10 | Broadcom Corporation | Method and apparatus for dual frequency timing acquisition for compressed WCDMA communication networks |
KR20080016159A (ko) * | 2006-08-17 | 2008-02-21 | 삼성전자주식회사 | 통신 시스템에서의 셀 탐색 방법 및 장치 |
CN101297486B (zh) * | 2006-09-25 | 2010-05-19 | 华为技术有限公司 | 携带同步编码的信息和帧定时同步的方法 |
GB2458418B (en) * | 2006-12-19 | 2011-08-03 | Lg Electronics Inc | Sequence generating method for efficient detection and method for transmitting and receiving signals using the same |
US9065714B2 (en) * | 2007-01-10 | 2015-06-23 | Qualcomm Incorporated | Transmission of information using cyclically shifted sequences |
US8009661B2 (en) * | 2007-01-31 | 2011-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Cell searching system and method |
WO2008143443A1 (fr) * | 2007-05-17 | 2008-11-27 | Lg Electronics Inc. | Procédé de transmission de signal de synchronisation dans un système de radiocommunications |
KR100938756B1 (ko) | 2007-07-06 | 2010-01-26 | 엘지전자 주식회사 | 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법 |
RU2454804C2 (ru) * | 2007-09-19 | 2012-06-27 | Самсунг Электроникс Ко., Лтд. | Устройство и способ перераспределения ресурсов и перегруппировки в системе беспроводной связи |
US8077693B2 (en) | 2007-09-19 | 2011-12-13 | Samsung Electronics Co., Ltd. | Resource remapping and regrouping in a wireless communication system |
EP3525525B1 (fr) * | 2007-10-10 | 2021-12-15 | Huawei Technologies Co., Ltd. | Procédé et appareil de codage pour signal de synchronisation de trames |
US8327217B1 (en) * | 2008-10-27 | 2012-12-04 | Link—A—Media Devices Corporation | Generating soft q-ary channel information |
US8107443B2 (en) * | 2009-02-10 | 2012-01-31 | Mediatek Inc. | Method of performing cell search for a wireless communications system |
CN101938813B (zh) * | 2009-06-30 | 2013-02-27 | 中兴通讯股份有限公司 | 联合辅同步信号检测与帧定时同步的方法 |
KR101612294B1 (ko) * | 2011-02-15 | 2016-04-15 | 삼성전자주식회사 | 통신 시스템에서 복호화를 위한 장치 및 방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358083A (en) | 1964-07-28 | 1967-12-12 | Bell Telephone Labor Inc | Time-division multiplex digital transmission arrangement employing a linear digital filter |
US5367544A (en) * | 1989-05-04 | 1994-11-22 | Northern Telecom Limited | Data stream frame synchronisation |
US5193094A (en) | 1990-03-07 | 1993-03-09 | Qualcomm Incorporated | Method and apparatus for generating super-orthogonal convolutional codes and the decoding thereof |
US5349589A (en) | 1991-07-01 | 1994-09-20 | Ericsson Ge Mobile Communications Inc. | Generalized viterbi algorithm with tail-biting |
US5369671A (en) | 1992-05-20 | 1994-11-29 | Hughes Aircraft Company | System and method for decoding tail-biting code especially applicable to digital cellular base stations and mobile units |
US5379305A (en) * | 1992-07-20 | 1995-01-03 | Digital Equipment Corporation | Error correction system with selectable error correction capabilities |
US5355376A (en) | 1993-02-11 | 1994-10-11 | At&T Bell Laboratories | Circular viterbi decoder |
US5509035A (en) * | 1993-04-14 | 1996-04-16 | Qualcomm Incorporated | Mobile station operating in an analog mode and for subsequent handoff to another system |
FR2712444B1 (fr) | 1993-11-10 | 1995-12-29 | Alcatel Mobile Comm France | Procédé de construction d'un code d'étalement associé à un utilisateur d'un système de transmission numérique à accès multiple par répartition par codes et à séquence directe, et procédé correspondant de génération d'un tableau. |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
US5831978A (en) * | 1996-10-18 | 1998-11-03 | Telefonaktiebolaget L M Ericsson Publ. | Method for multiplexing of parallel information streams in a CDMA system |
US5991330A (en) | 1997-06-27 | 1999-11-23 | Telefonaktiebolaget L M Ericsson (Pub1) | Mobile Station synchronization within a spread spectrum communication systems |
US6185244B1 (en) | 1997-08-29 | 2001-02-06 | Telefonaktiebolaget Lm Ericsson | Cell searching in a CDMA communications system |
US6526035B1 (en) * | 1998-06-09 | 2003-02-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for identifying the source of a digital signal |
-
1998
- 1998-08-05 US US09/129,151 patent/US6185244B1/en not_active Expired - Lifetime
- 1998-08-25 AU AU88953/98A patent/AU755349B2/en not_active Expired
- 1998-08-25 CN CNB988106930A patent/CN1135765C/zh not_active Expired - Lifetime
- 1998-08-25 BR BRPI9812029A patent/BRPI9812029B1/pt active IP Right Grant
- 1998-08-25 CA CA002301749A patent/CA2301749C/fr not_active Expired - Lifetime
- 1998-08-25 KR KR10-2000-7002012A patent/KR100378478B1/ko not_active IP Right Cessation
- 1998-08-25 WO PCT/SE1998/001518 patent/WO1999012295A1/fr active IP Right Grant
- 1998-08-25 JP JP2000509184A patent/JP3427056B2/ja not_active Expired - Lifetime
- 1998-08-25 EP EP98940753A patent/EP1008245B1/fr not_active Expired - Lifetime
- 1998-08-25 CN CNB031452108A patent/CN100531016C/zh not_active Expired - Lifetime
- 1998-08-25 DE DE69840981T patent/DE69840981D1/de not_active Expired - Lifetime
- 1998-08-26 MY MYPI98003908A patent/MY121295A/en unknown
- 1998-08-27 AR ARP980104275A patent/AR013953A1/es active IP Right Grant
-
2000
- 2000-12-20 US US09/742,714 patent/US6760361B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6760361B2 (en) | 2004-07-06 |
KR20010040238A (ko) | 2001-05-15 |
US6185244B1 (en) | 2001-02-06 |
KR100378478B1 (ko) | 2003-03-29 |
JP2001515304A (ja) | 2001-09-18 |
CA2301749C (fr) | 2009-11-24 |
EP1008245B1 (fr) | 2009-07-15 |
BR9812029A (pt) | 2000-09-26 |
AU8895398A (en) | 1999-03-22 |
AU755349B2 (en) | 2002-12-12 |
WO1999012295A1 (fr) | 1999-03-11 |
CA2301749A1 (fr) | 1999-03-11 |
BRPI9812029B1 (pt) | 2017-03-14 |
CN100531016C (zh) | 2009-08-19 |
EP1008245A1 (fr) | 2000-06-14 |
DE69840981D1 (de) | 2009-08-27 |
JP3427056B2 (ja) | 2003-07-14 |
CN1278380A (zh) | 2000-12-27 |
MY121295A (en) | 2006-01-28 |
CN1476192A (zh) | 2004-02-18 |
CN1135765C (zh) | 2004-01-21 |
US20010019576A1 (en) | 2001-09-06 |
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